Cookiwg-stove



S. W. COLE. l Cook'mg Stove.

Patented Aug. 25, 1840.

nNTTEn sTATEs PATENT oEEioE.

SAMUEL W. COLE, OF CHELSEA, MASSACHUSETTS.

COOKING-STOVE.

Specification of Letters Patent No. 1,730, dated August 25, 1840.

To all whom t may concern:

Be it known that I, SAMUEL IV. COLE, of Chelsea, in the county ofSuffolk and State of Massachusetts, have invented new and usefulImprovements in Stoves.

The said improvements the principles thereof and manner in which I haveconteniplated the application of the same by which they may bedistinguished from other inventions of a like character, ltogether withsuch vparts or combinations I claim as my invention and consideroriginal and new, I have herein set forth and described.

The said description taken in connection with the accompanying drawingsherein referred to composes my specification.

Figure l, is across section taken vertically through the stove. Fig. 2is an elevation. Fig. 3, is an end view. Fig. 4 is a vertical crosssection taken at right angles to that exhibited in Fig. l. Fig. 5 is aplan or top view. Fig. 6 is a horizontal section. Fig. 7 is a detailedview of a temporary grating.

The object of my improvements is by a small expenditure of fuel toperform the several culinary operations of boiling baking &c., to heatthe apartment in which the stove is placed or if necessary to divest theheat from the room, and cause it, after having performed the requiredoperations, to pass with the smoke &c., into the chimney or atmosphere.

Economy, in the use of fuel, and causing the same to perform its severaloffices with expedition are, I am aware the useful effects generallyproposed to be attained by this class of inventions, but I consider'that they are more effectually secured by my peculiar arrangement thanin the stoves now in use.

A A, &c., in the different figures, are the standards or legs whichsupport the body of the stove.

B B B B, Figs. l, 2 and 4 represent the fire chamber' o-r furnace, inwhich the fuel for producing the heat is placed. This furnace is shapedlike an inverted hollow frustum of a cone, the diameter of the same atthe top being greater than at the bottom. This furnace is arranged withtwo grates or gratings C C, D D, supported on suitable pins E E, F F,Figs. 1 and 4, the former of which I denominate the stationary orpermanent grate as it is the one which is commonly used, the latterbeingone which can be used or removed at pleasure; the. object of its .usebeing to bring the heat from a small quantity of fuel mo-re directly incontact with the parts in the upper portion of the stove to be hereafterdescribed.

Directly underneath the furnace is an ash pan Gr Gr G G (Figs. l, 2 3and 4) for receiving the ashes which fall through the grates; itl hassuitable ledges on its sides arranged with the slides a a., o b, onwhich it can be moved forward and back.

The draft is furnished to the lire in the furnace by means of an openingc c in the back part of the ash pan (as seen in-Figs. 3 and 4) workingwith a ledge Z behind the same so that the draft (as will readily beseen) is increased or diminished, by moving forward or back the ash pan,by its handle and is entirely shut olf when the back of said pan isagainst the ledge d. The direction of the draft may be more plainlyindicated by the blue arrows in Figs. l and 4. On the side of thefurnace and opening into the same is the slide or mouth f f f (Figs. l,2 and 4) shaped like half a hollow inverted cone, through which the fuelis fed to the furnace.

The furnace B B B B is set in or near the center of a large cylinder g gg g, (Figs. l, 2, 3, 4 and 5), the diameter of which is greater thanitsperpendicular height, the periphery of the cylinder being formed ofany suitable metal, the interior surface of which should be properlypolished. The space between the sides of the furnace and those of thecylinder, or that denoted by h ii L la. 7L &c., in the several figuresforms the oven or baking chamber of the stove, the heat being diffusedthroughout the same by radiation from the furnace B B B B, andreflection from the inner surface of the large cylinder g g g g, &c. Inorder to produce a more equal distribution of the heat throughout thebaking apartment, I arrange a cylinder c' z' z' z', Figs. l 2 and 4extending nearly to the bottom of the baking apartment around thefurnace B B B B. The top of thiscylinder is in close contact with thesurface of the furnace, but as the furnace tapers (as has beendescribed) toward the bottom, it will readily be perceived, that therewill be a space or opening 7c, Figs. 1 and 4, between the same and thecylinder, and the air in this space becoming rarefied to a great degreeand having no means of escape upward between the said cylinder and thefurnace, would of course, pass from the its inner edge and the furnace,and also be-v tween its outer edge and the' periphery of the largecylinder, properspaces being also made in the grating as seen in Fig. 6at m m m &c., Vso that the heat may be ein contact with all sides of anyvessel or vessels, which may be placed thereon, in which the article orarticles are to bebaked. This grating is supported on any proper numberof rods or standards n n n a and may be adjusted to any height in theoven by means of screws cut on said rods, working withy correspondingscrews in the stationary nuts as seen at 0 0, Figs. 1 and 4., theoperation of which will be readily understood. The

Vobject `of this adjustment is to take every possible advantage of theheat in the baking apartment, and to accommodate deep or shallowvessels. Two temporary gratings 7' r r r Fig. l of triangularshape asseen in Fig. 7, may be placed on each side of the furnace, the cornersbeing supported on suitable hooks, arranged on the cylinder z' i z' andperiphery of the baking apartment to accommodate an additional number ofvessels, when the grating Z Z Z is entirely covered. These gratings willlikewise be found to be very `convenient for baking expeditiously whenthe fire is on the upper grate in the furnace.

' hole or apertures (r r r 1" Fig; 5), are formed" The baking apartmentis arranged with t-wo doors p p, p p Figs. 2 and 3, the door beingremovedv in Fig. 2. Y These doors aord convenient access to every partof the oven, and when open allow the heated air to escape into theapartment and effectually warm the same. On the-top of the bakingapartment, and extending over vthe top and mouth o-f the furnace, theboiling chamber f7 q g is suitably arranged and attached. The sides ofthis boiling apartment converge so as-to make the chamber of less widthnear the discharge pipe than in front `as seen in Fig. 5. In the top ofthis chamber circular in which any suitable boiling vessels s, s may beplaced, the larger being in front. The smoke&c., from thefurnace servesto heat the chamber. A cover Z, t, Figs. l and 4,on the top of thefurnace besides answering the usual purpose of suchV parts, likewiseserves to regulate the passage, and control the direction ofsmokeandrheat, and `also to retain `the same in thefurnace when required,which creates a greater radiation of heat in the oven. Between theboilers s, s,

the curved partition u, u Fig. 5 is placed,

which has a` proper opening-c o 'u o, Figs. 3, 4fand4 5, for the passageof the heat, smoke, &c., to the second boiler. By this arrangement theheated air, &c., passing from the mouth f 7 f of the furnace, (when thecover tis placed in the position represented in Fig. l), would, aswillreadily be perceived, be causedV to circulate around all the surfaceof the front boiler in the chamber, and having no means of escapeexcepting through the opening a@ fu o will pass in a volume through thesame and impinge on the second boiler, and thus be brokenand caused topass around said boiler to `the discharge f' smoke in close contact withthe second boiler.V

Zhen it is desirable to `bring the heat directlyto the second boiler, itis only necessary to slide the cover t tforward and the smoke and heatwill pass from behind the same and escape'through the opening o v rfv,and accomplish the desired end.

When theheated air in the oven is not wanted for baking, it `may beintroduced into the boiling chamber, by means of the valves a Z9 ;-Fig'.2, which may be opened or closed at pleasure, by opening which the heatis prevented from passing into the apartment. A door c o is fixed in thefrontof the boiling chamber g g g Q, to allow convenient access `to the`mouth o-f the furnace, to feed the same with fuel. Y The parts of theabove stove are composed of tinned, sheet or cast-iron or any othersuitable metalor material, the same being secured together by rods,screws and nuts as shown in the drawings or in any other proper manner.v

` The advantages of this arrangement, are many of them so apparent as torequire no mention afterdescribing the apparatus. It

Vmight howeverbeobserved with regard to the method of regulatingthedraft, in addition to what has been above stated,'that'f when the`draft is entirely stopped (which this arrangement provides for), thesmoke is prevented from passing into the room, Vwhen it is desirabletomove either boilers, such inconvenience frequently occurring in stovesof ordinary construction.

4Having thus described my improvements I shall now specificallypoint outthose parts up throughthe bottom plategalso the` furnaceconstructed withan Vexterior casingor cylinder for the purpose of causing the heatradiating from the outer surface of the furnace to pass downward andescape near the shelf with the oven and furnace, the furnace v being soarranged in the oven that the shelf 10 shall entirely surround it.

In testimony that the above is a true description of my said inventionand improvement I have hereto set my signature this thirtieth day ofJune in the year of our Lord eighteen hundred and forty.

S. W. COLE.

Witnesses:

R. H. EDDY, EzRA LINCOLN, J r.

